Pump.



No. 683,542. Patented oet. l, 190|. c. c. wonTHmGToN.

PUMP.

(Application ma Apr. 4, 1900.).

' (ND lldel.)

G O C C) NITED STATES PATENT Ormes.

CHARLES C./WORTHINGTON, OF DUNNFIELD, NEW JERSEY.

srncirrca'rroiv forming part of Letters Patent No. 683,542, dated otobef 1, 1901'.

Serial No. 11,517. (No model.)

T0 a/ZZ whom, it may concern,.-

Be it known that I, CHARLES C. WORTHING- TON, a citizen of the United States, residing at Dunnfield, county of `Warren, and State of New Jersey, have invented certain new and useful Improvements in Pumps, fully described and represented in the following specication and the accompanying drawings, forming a part of the same.

The object of the present invention is to provide an improved construction of pump end for steam or other power pumps which shall be simple, cheap, and durable in construction, attractive in appearance, compact and of light weight, and with short and direct passages for the iluid to be pumped. I aim particularly at the production of such a duplex pump, and certain features of the invention are limited to duplex-pump constructions; but the invention, broadly considered, includes also constructions in single pumps.

For a full understanding of the invention a detailed description of a construction embodying all the features of the invention in their preferred form as applied to a duplex pump will now be given in connection with the accompanying drawings, forming a part of this specification, and the features forming the invention then particularly pointed out in the claims.

In the drawings, which show the pump end of a duplex or two-cylinder pump, which may be of any general construction, such as that of well-known direct-acting or crank pumps, Figurel is a side elevation of the pump. Fig. 2 is an end View looking to the left in Fig. 1, or toward the power end of the pump. Fig. 3 is a vertical cross-section on the line 3 of Figs. l and 4. Fig. 4 is a vertical longitudinal section on the line 4 of Figs. 2 and 3. Fig. 5 is a horizontal section on the line 5 of Figs. l, 2, and 3. Fig. 6 is a sectional side elevation on the line 6 of Fig. 3.

Referring to said drawings, A A are the water-cylinders on opposite sides of the pump, and a aV the corresponding pistons or plun gers, having piston or plunger rods b b.

B B are the pulsation-chambers for the respective cylinders A AQ extending longitudinally of and in line with the cylinders and divided by partitions 13 to form chambers for the opposite ends of the double-acting pump shown.

C is the suction-chamber common to the two sides of the pump and extending longitudinally of the cylinders between the pulsation-chambers B B', and D is the force-chamber on the sides of the pump outside of the two pulsation-chambers B B and having a portion D extending over the top of the suction and pulsation chambers centrally of the pump and transversely to tho cylinders. The suction-chamber is shownas opening at both endsl of the pump, which is preferable, so that the suction-main connection may be made at either end, as desired, and E is the Asuction-main, shown as connected at the rear or outer end of the pump, the suction-port at the other end of the suction-chamber being closed by cover lO. The force-mainF connects with the top portion D of the force-chamber centrally at the top of the pump. The suction and force chambers are separated from the pulsation-chambers by valve-plates 11, arranged edgewise to the cylinders-that is, vertically in the pump shown-and eX- tending longitudinally of the cylinders. In these valve-plates are the suction-valves c and force-valves d, which are shown as the common voluntary valves, each of these sets of valves being shown as consisting of two horizontal rows.

The top of the suction and pulsation chambers is closed by a web l2, extending over the valve-plates 1l, and convenient access to the force-valves on opposite sides of the pump is provided by side hand-holes having covers 14: and to the suction-valves by top handholes o n opposite sides of the upper part of the `force-chamber D, having covers l5.

It will be seen from the drawings that the cylinders, valve-plates, and all the pumpchambers, including the force-chamber, may be made in a single casting of simple form, and this is preferable, my improved construction permitting the force-chamber, as well as the other chambers, to be formed integral with the cylinders instead of bolting on a separate force-chamber. It will be understood, however, that the invention is not limited to such a single-casting construction, although this forms a specific feature of the IOO invention. It is clear from the drawings that a very compact, strong, and light duplexpump construction is secured by my invention, while the construction is very efticient and desirable on account of the directness of the various passages, the valves are readily accessible, and the cost of the construction as compared with other pumps of the same capacity is reduced, not only by the large reduction in the weight and amount of material, but also in the labor required in.manu facture.

I preferably use a construction in which the valve-plates and valves are arranged so as toeconomize space and secure a more compact construction by utilizing the variation in Iiow of the Huid in dierent parts of the pulsation and suction chambers, the flow of fluid in the pulsation-chamber being less at the top than at the bottom, and vice versa in the suction-chamber. This result is secured by making the suction-chamber increase in width from the cylinder and the pulsationchamber increase in width toward the cylinder. As shown in the drawings, the valveplates Il are stepped at l between the two horizontal rows of valves, so that the suctionchamber is narrow at the bottom and wide at the top and the pulsation-chambers are wide at the bottom and narrow at the top, thus saving largely in the width of the pump required for a given capacity.

From the illustration in the drawings and the above description of the invention as applied to a duplex pump the construction of a single pump involving the broad invention will be clear, as such a single pump may consist simply of one-half of the duplex pump shown, the pump being divided longitudinally between the cylinders, and the forcemain may connect Vw-ith the top of the pump,

as shown, or with the side of the forcechamber, and the suction-main may connect either at the end of the pump, as in the construction shown, or at the side of the suction-cham- In either a single or duplex ber, as desired. pump the connection of the force-main at the top and the suction-main at the end of the pump is desirable,a`s it reduces the door-space occupied by the pump and its connections.

While the invention has been illustrated and described as applied to double-acting pumps, it will be understood that, broadly Vskilled in the art without departingfrom the invention and that I am not to be limited to the exact form or arrangement of parts shown in the drawings.

What I claim is- .1. The combination with a pump-cylinder, of suction and force valve plates arranged` edgewise to the pump-cylinder and extend.

in g longitudinally of the cylinder, a pulsationchamber between said plates, and suction and force chambers on opposite sides of the pulsation-chamber, substantially as described.

2. The combination with a pump-cylinder, of suction and force valve plates arranged edgewise to the pump-cylinder and extendinglongitudinally of the cylinder,a pulsationchamber between said plates, and suction and force chambers on opposite sides of the pulsation-chamber, said valve-plates being shaped to form a pulsation-chamber increasing in width toward the cylinder and a suctionchamber increasing in width from the cylinder, substantially as described.

3. The combination with a pump-cylinder, and a pulsation-chamber arranged in line with and extending longitudinally of thecylinder and opening directly from the cylinder, of suction and force chambers extending longitudinally of the cylinder on opposite sides of the pulsation-chamber, and suction vand force valve plates extending longitudinally of the cylinder between the puisation-chamber and the suction and force chambers, substantially as described.

4. In a double-acting pump, the combination with the pumpcylinder, of suction and force valve plates arranged edgewise to the pump-cylinder and extending longitudinally of the cylinder, pulsation-chambers for the opposite ends of the pump between said plates, and suction and lforce chambers extending along both pulsation-chambers on opposite sides of the pulsation -charnbers, substantially as described.

5. y In a double-acting pump, the combination with the pump-cylinder, of pulsationchambers for the opposite ends of the pump arranged in line with and extending longitudinally of the cylinder and opening directly from the cylinder, suction and force chambers extending longitudinally of the cylinder and along both pul'sation-chambers on opposite sides of the pulsation-chambers, and suction and force valve plates extending longitudinally of the cylinder between the pulsation chambers and the suction and force chambers, substantially as described.

6. In a duplex pump, the combinationwith the pump-cylinders, of suction and force valve plates arranged edgewise to the cylinders and extending longitudinally of the cylinders, a central suction-chamber, pulsationchambers for the two sides of the pump on 'opposite sides of thesuction-chgalnber, and a force-chamber extending outside said pulsation-chambers on opposite sides of the pump, substantially as described.

7. In a duplex pump, the combination with the pump cylinders, of suction and force valve plates arranged edgewise to the cylinders and extending longitudinally of the cylinders, a central suction-chamber, pulsation- 'chambers for the two sides of the pump on opposite sides of the suction-chamber, and a forcechamber extending outside said pulsation-chambers on opposite sides of the pump,

IOO

IIO

esame said valve-plates being shaped to form pulsation-chambers increasing in width toward the cylinders and a suction-chamber increasing in width from the cylinders, substantially as described.

8. In a duplex pump, the combination of the pump-cylinders, pulsation-chambers for the opposite sides of the pump extending longitudinally of the respective cylinders, a suction-chamber between said pulsation-chambers, a force-chamber extending outside the pulsation-chambers on opposite sides of the pump, and suction and force valve plates extending longitudinally of the cylinders between the pulsation-chambers and the suction and force chambers, substantially as described.

'9. In a duplexpum p, the combination of the pump-cylinders, pulsation-chambers for the opposite sides of the pump extending longitudinally of the respective cylinders, a suction-chamber between said pulsation-chambers, a force-chamber extending outside the pulsation-chambers on opposite sides of the pump and over the top of the pulsation and suction chambers, and suction and force valve plates extending longitudinally of the cylinders between the pulsationchambers and the suction and force chambers, substantially as described.

10. In a duplex pump, the combination of the pump-cylinders, pulsation-chambers for the opposite sides of the pump extending longitudinally of the respective cylinders, a suction-chamber between said pulsation-chambers, a force-chamber extending outside the pulsation-chambers on opposite sides ofthe pump and longitudinally of the cylinders, and valve-plates extending longitudinally of the cylinders between said chambers, all formed integral, substantially as described.

11. In a duplex pump, the combination of the pump-cylinders, pulsation-chambers for the opposite sides of the pump arranged in line with and longitudinally of the respective cylinders, a suction-chamber between said pulsation-chambers, a force-chamber extending outside the pulsation-chambers on opposite sides of the pump and over the top of the pulsation and suction chambers, and valveplates extending longitudinally of the cylinders between said chambers, all formed integral, substantially as described.

12. The combination with a pump-cylinder, of a suction-chamber and pulsation-chamber arranged side by side with the suction-chamber increasing in width from the pump-cylinder and the pulsation-chamber increasing in width toward the cylinder, substantially as described.

13. A pump having stepped valve-plate 11 with suction-valves on opposite sides of the step, and suction and pulsation chambers on opposite sides of the plate, substantially as described.

14. A pump having stepped suction and force valve plates 11, each with valves on opposite sides of the step, and suction and force chambers on opposite sides of the pulsationchamber, substantially as described.

15. A duplex pump having the cylinders A, A', central suction-chamber C, pulsationchambers B, B on opposite sides of the suction-chamber, force-chamber D outside the pulsation-chambers, all said chambers extending longitudinally of the cylinders, and

top force-chamber extension D extending across the pump for connection with the forcemain, substantially as described.

16. A duplex pump having its force-chamber extending over the top and at opposite sides of the pump and a central suction-cham# ber, and having the top portion of the forcechamber arranged centrally of the pump and of such width as to permit access to the suction-valves at the top of the pump independ# ently of the force-chamber, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

CHARLES C. VVORTHING'ION.

Witnesses:

C. J. SAWYER, T. F. KEHOE. 

